2003 Mercedes Clk 230k — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years

Current Age

50.7%

Latest Pass Rate

3,054

Total Tests (All Years)

101,005 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 17

This car: 50.7%

Average: 53.5%

⚠️ 2.8% below average (9249 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Clk 230k as it ages.

6 yrs70.0%

→ ↑1.2%

7 yrs71.2%

→ ↓0.5%

8 yrs70.7%

→ ↑1.2%

9 yrs71.9%

→ ↓5.0%

10 yrs66.9%

→ ↑4.6%

11 yrs71.5%

→ ↓10.0%

12 yrs61.5%

→ ↑5.3%

13 yrs66.8%

→ ↓0.1%

14 yrs66.7%

→ ↓4.2%

15 yrs62.5%

→ ↓0.3%

16 yrs62.2%

→ ↓11.5%

17 yrs50.7%

📊 View as table

Age	Pass Rate	Tests
6 yrs	70.0%	343
7 yrs	71.2%	340
8 yrs	70.7%	345
9 yrs	71.9%	342
10 yrs	66.9%	335
11 yrs	71.5%	333
12 yrs	61.5%	322
13 yrs	66.8%	301
14 yrs	66.7%	144
15 yrs	62.5%	96
16 yrs	62.2%	82
17 yrs	50.7%	71

Pass Rate Trend

How the 2003 Mercedes Clk 230k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (17 yrs)	50.7%	71
2019 (16 yrs)	62.2%	82
2018 (15 yrs)	62.5%	96
2017 (14 yrs)	66.7%	144
2016 (13 yrs)	66.8%	301
2015 (12 yrs)	61.5%	322
2014 (11 yrs)	71.5%	333
2013 (10 yrs)	66.9%	335
2012 (9 yrs)	71.9%	342
2011 (8 yrs)	70.7%	345
2010 (7 yrs)	71.2%	340
2009 (6 yrs)	70%	343

Year-by-Year MOT Results

2009

70.0%

Age (yrs) 6Tests 343Avg Mileage 57,135Top Failure Tyres — 14.3%

2010

71.2%

Age (yrs) 7Tests 340Avg Mileage 62,936Top Failure Tyres — 11.8%

2011

70.7%

Age (yrs) 8Tests 345Avg Mileage 69,265Top Failure Tyres — 13.9%

2012

71.9%

Age (yrs) 9Tests 342Avg Mileage 75,085Top Failure Lamps, Reflectors and Electrical Equipment — 13.2%

2013

66.9%

Age (yrs) 10Tests 335Avg Mileage 80,149Top Failure Brakes — 29.6%

2014

71.5%

Age (yrs) 11Tests 333Avg Mileage 84,832Top Failure Brakes — 25.2%

2015High Fail Rate

61.5%

Age (yrs) 12Tests 322Avg Mileage 89,158Top Failure Brakes — 39.8%

2016

66.8%

Age (yrs) 13Tests 301Avg Mileage 92,402Top Failure Brakes — 31.2%

2017

66.7%

Age (yrs) 14Tests 144Avg Mileage 97,981Top Failure Lamps, Reflectors and Electrical Equipment — 36.8%

2018High Fail Rate

62.5%

Age (yrs) 15Tests 96Avg Mileage 95,463Top Failure Brakes — 39.6%

2019High Fail Rate

62.2%

Age (yrs) 16Tests 82Avg Mileage 101,826Top Failure Lamps, reflectors and electrical equipment — 46.3%

2020High Fail Rate

50.7%

Age (yrs) 17Tests 71Avg Mileage 101,005Top Failure Lamps, reflectors and electrical equipment — 74.6%

MOT results for 2003 Mercedes Clk 230k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	6	70.0%	343	57,135	Tyres — 14.3%
2010	7	71.2%	340	62,936	Tyres — 11.8%
2011	8	70.7%	345	69,265	Tyres — 13.9%
2012	9	71.9%	342	75,085	Lamps, Reflectors and Electrical Equipment — 13.2%
2013	10	66.9%	335	80,149	Brakes — 29.6%
2014	11	71.5%	333	84,832	Brakes — 25.2%
2015	12	61.5%	322	89,158	Brakes — 39.8%
2016	13	66.8%	301	92,402	Brakes — 31.2%
2017	14	66.7%	144	97,981	Lamps, Reflectors and Electrical Equipment — 36.8%
2018	15	62.5%	96	95,463	Brakes — 39.6%
2019	16	62.2%	82	101,826	Lamps, reflectors and electrical equipment — 46.3%
2020	17	50.7%	71	101,005	Lamps, reflectors and electrical equipment — 74.6%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Clk 230k, with age trends.

Lamps, reflectors and electrical equipment

51.8%

↑ Increases with age

Brakes

26.6%

↑ Increases with age

Tyres

23.0%

↑ Increases with age

Suspension

19.8%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

19.2%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	7.9% (6 yrs)	57.7% (17 yrs)	+49.8%	🔴 ↑
Tyres	14.3% (6 yrs)	42.3% (17 yrs)	+28.0%	🔴 ↑
Suspension	10.5% (6 yrs)	29.6% (17 yrs)	+19.1%	🔴 ↑

Other Manufacture Years

1997 1998 1999 2000 2001 2002 2003

← Back to Mercedes Clk 230k overview

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About This Data

This page shows how Mercedes Clk 230k cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2020, covering 3,054 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.